A 16-year-old boy is in critical condition and a 19-year-old man is in serious condition after an early morning hit-and-run, Montgomery County police said.

A man turned himself into police at about 11:20 a.m., Montgomery County police Capt. Paul Starks said. He is being interviewed by police, Chris Gordon reported.

Just after midnight, the two teens were riding on a scooter in the 12700 block of Veirs Mill Road in Rockville, Md., when an eastbound car hit them from behind.

Witnesses told police that the vehicle dragged the scooter for about a block and that the driver stopped at first before leaving the scene.

Police were looking for a silver, two-door Mercedes with tinted windows and expected there to be damage to the front of the car, including the windshield. The car was last seen driving eastbound on Veirs Mill from Rockville toward Wheaton.

Police found pieces of the vehicle at the scene but haven't been able to process the vehicle itself. Starks said police know where the vehicle is and have applied for a warrant to confiscate it for evidence.

The victims have been identified as 16-year-old Noel Hernandez Mendoza and 19-year-old Mario Claros Hernandez, who was driving the scooter. Neither appears to be a current Montgomery County Public Schools student, officials said.

No one has been charged.

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